Which two steps are required before SSH can be enabled on a Cisco router? (Choose two.)

Which two steps are required before SSH can be enabled on a Cisco router? (Choose two.)

• Give the router a host name and domain name.
• Create a banner that will be displayed to users when they connect.
• Enable SSH on the physical interfaces where the incoming connection requests will be received.
• Generate a set of secret keys to be used for encryption and decryption.
• Set up an authentication server to handle incoming connection requests.
  

  Explanation: There are four steps to configure SSH on a Cisco router. First, set the host name and domain name. Second, generate a set of RSA keys to be used for encrypting and decrypting the traffic. Third, create the user IDs and passwords of the users who will be connecting. Lastly, enable SSH on the vty lines on the router. SSH does not need to be set up on any physical interfaces, nor does an external authentication server need to be used. While it is a good idea to configure a banner to display legal information for connecting users, it is not required to enable SSH.​